Adding ONOS Segment Routing CLI files to new repo
diff --git a/cli/documentation/en_US/controller/ip-address-netmask b/cli/documentation/en_US/controller/ip-address-netmask
new file mode 100755
index 0000000..3cc6596
--- /dev/null
+++ b/cli/documentation/en_US/controller/ip-address-netmask
@@ -0,0 +1,2 @@
+Specify the statically-configured IP netmask of the controller node
+(e.g. 255.255.255.0).